64101800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 179809920

約数和(自身を除く): 115708120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 49, 50, 56, 62, 70, 98, 100, 124, 140, 155, 175, 196, 200, 211, 217, 245, 248, 280, 310, 350, 392, 422, 434, 490, 620, 700, 775, 844, 868, 980, 1055, 1085, 1225, 1240, 1400, 1477, 1519, 1550, 1688, 1736, 1960, 2110, 2170, 2450, 2954, 3038, 3100, 4220, 4340, 4900, 5275, 5425, 5908, 6076, 6200, 6541, 7385, 7595, 8440, 8680, 9800, 10339, 10550, 10850, 11816, 12152, 13082, 14770, 15190, 20678, 21100, 21700, 26164, 29540, 30380, 32705, 36925, 37975, 41356, 42200, 43400, 45787, 51695, 52328, 59080, 60760, 65410, 73850, 75950, 82712, 91574, 103390, 130820, 147700, 151900, 163525, 183148, 206780, 228935, 258475, 261640, 295400, 303800, 320509, 327050, 366296, 413560, 457870, 516950, 641018, 654100, 915740, 1033900, 1144675, 1282036, 1308200, 1602545, 1831480, 2067800, 2289350, 2564072, 3205090, 4578700, 6410180, 8012725, 9157400, 12820360, 16025450, 32050900, 64101800]

約数ペア:

[(1, 64101800), (2, 32050900), (4, 16025450), (5, 12820360), (7, 9157400), (8, 8012725), (10, 6410180), (14, 4578700), (20, 3205090), (25, 2564072), (28, 2289350), (31, 2067800), (35, 1831480), (40, 1602545), (49, 1308200), (50, 1282036), (56, 1144675), (62, 1033900), (70, 915740), (98, 654100), (100, 641018), (124, 516950), (140, 457870), (155, 413560), (175, 366296), (196, 327050), (200, 320509), (211, 303800), (217, 295400), (245, 261640), (248, 258475), (280, 228935), (310, 206780), (350, 183148), (392, 163525), (422, 151900), (434, 147700), (490, 130820), (620, 103390), (700, 91574), (775, 82712), (844, 75950), (868, 73850), (980, 65410), (1055, 60760), (1085, 59080), (1225, 52328), (1240, 51695), (1400, 45787), (1477, 43400), (1519, 42200), (1550, 41356), (1688, 37975), (1736, 36925), (1960, 32705), (2110, 30380), (2170, 29540), (2450, 26164), (2954, 21700), (3038, 21100), (3100, 20678), (4220, 15190), (4340, 14770), (4900, 13082), (5275, 12152), (5425, 11816), (5908, 10850), (6076, 10550), (6200, 10339), (6541, 9800), (7385, 8680), (7595, 8440)]